TY - JOUR
AU - Jaffe,Adam B.
TI - Market Demand, Technological Opportunity and Research Spillovers on R&D Intensity and Productivity Growth
JF - National Bureau of Economic Research Working Paper Series
VL - No. 1432
PY - 1984
Y2 - August 1984
DO - 10.3386/w1432
UR - http://www.nber.org/papers/w1432
L1 - http://www.nber.org/papers/w1432.pdf
N1 - Author contact info:
Adam B. Jaffe
Motu Economic and Public Policy Research
PO Box 24390
Wellington 6142
New Zealand
Tel: 64-4-939-4250
E-Mail: adam.jaffe@motu.org.nz
AB - This paper uses sales and patent distribution data to establish the market and technological "positions" of firms. A notion of technological proximity of firms is developed in order to quantify potential R&D spillovers. The importance of the position variables and the potential spilover pool in explaining R&D intensity, patent productivity and TFP growth is explored.I find that both technological and market positions are signifi-cant in explaining R&D intensity, and that the technological effects are significant in explaining patent productivity. I cannot distinguish between the two effects in explaining TFP growth. Spillovers are important in all three contexts. Firms in an area where there is a high level of research by other firms do more R&D themselves, they produce more patents per R&D dollar, and their productivity grows faster, even controlling for the increased R&D and patents. These effects are present controlling for both industry and technological position effects.
ER -